Thanks again for your reply, Mica.
Controls - I'll have a think about it and I'll post a reply here, probably tomorrow. Your suggestion (Roger Layout) I hadn't previously considered and it's got me thinking about my own proposed layout.
Tailpiece - I like symmetry. That's fine coming from me with the design of this bass isn't it? However, I think that as the bridge, the pick-ups, the stripes thru the neck and the knobs are all (or will be) uniform shapes, that the tailpiece should be uniform too. Which brings me to my next question...
Is it possible to have a slightly scaled up version of the bird tailpiece? Or....a symmetrical version of the proposed tailpiece?
Thanks!
Rog